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Semantic communication focuses on conveying the task-relevant meaning rather than exact bitwise recovery. For image transmission with a generative receiver, relying only on text descriptions can be insufficient to preserve instance-specific…

Information Theory · Computer Science 2026-01-27 Xuesong Wang , Xinyan Xie , Mo Li , Zhaoqian Liu

Semantic communication is emerging as an effective means of facilitating intelligent and context-aware communication for next-generation communication systems. In this paper, we propose a novel metric called Age of Incorrect Semantics…

Information Theory · Computer Science 2025-08-21 Xue Han , Biqian Feng , Yongpeng Wu , Xiang-Gen Xia , Wenjun Zhang , Shengli Sun

Transmit beamforming is a versatile technique for signal transmission from an array of $N$ antennas to one or multiple users [1]. In wireless communications, the goal is to increase the signal power at the intended user and reduce…

Information Theory · Computer Science 2014-07-22 Emil Björnson , Mats Bengtsson , Björn Ottersten

Semantic communication is widely touted as a key technology for propelling the sixth-generation (6G) wireless networks. However, providing effective semantic representation is quite challenging in practice. To address this issue, this…

Information Theory · Computer Science 2024-06-18 Jinke Ren , Zezhong Zhang , Jie Xu , Guanying Chen , Yaping Sun , Ping Zhang , Shuguang Cui

Multimodal sentiment analysis (MSA) leverages information fusion from diverse modalities (e.g., text, audio, visual) to enhance sentiment prediction. However, simple fusion techniques often fail to account for variations in modality…

Machine Learning · Computer Science 2025-10-03 Han Wu , Yanming Sun , Yunhe Yang , Derek F. Wong

Text-to-image generation has advanced rapidly, yet aligning complex textual prompts with generated visuals remains challenging, especially with intricate object relationships and fine-grained details. This paper introduces Fast Prompt…

Computation and Language · Computer Science 2024-12-12 Khalil Mrini , Hanlin Lu , Linjie Yang , Weilin Huang , Heng Wang

Semantic communication emphasizes the transmission of meaning rather than raw symbols. It offers a promising solution to alleviate network congestion and improve transmission efficiency. In this paper, we propose a wireless image…

Signal Processing · Electrical Eng. & Systems 2025-07-17 Chen Zhu , Siyun Liang , Zhouxiang Zhao , Jianrong Bao , Zhaohui Yang , Zhaoyang Zhang , Dusit Niyato

There is an increasing demand of massive machine-type communication (mMTC) to provide scalable access for a large number of devices, which has prompted extensive investigation on grant-free massive random access (RA) in 5G and beyond…

Signal Processing · Electrical Eng. & Systems 2023-04-13 Xinyu Bian , Yuyi Mao , Jun Zhang

Task-oriented communication is a new paradigm that aims at providing efficient connectivity for accomplishing intelligent tasks rather than the reception of every transmitted bit. In this paper, a deep learning-based task-oriented…

Signal Processing · Electrical Eng. & Systems 2022-04-20 Chuanhong Liu , Caili Guo , Yang Yang , Nan Jiang

With the significant advancements in artificial intelligence (AI) technologies and powerful computational capabilities, generative AI (GAI) has become a pivotal digital content generation technique for offering superior digital services.…

Networking and Internet Architecture · Computer Science 2023-09-06 Jiacheng Wang , Hongyang Du , Dusit Niyato , Jiawen Kang , Zehui Xiong , Deepu Rajan , Shiwen Mao , Xuemin , Shen

Massive Machine-Type Communications (mMTC) features a massive number of low-cost user equipments (UEs) with sparse activity. Tailor-made for these features, grant-free random access (GF-RA) serves as an efficient access solution for mMTC.…

Information Theory · Computer Science 2023-05-18 Zhaoji Zhang , Yuhao Chi , Qinghua Guo , Ying Li , Guanghui Song , Chongwen Huang

In this work, we expand the cooperative multi-task semantic communication framework (CMT-SemCom) introduced in [1], which divides the semantic encoder on the transmitter side into a common unit (CU) and multiple specific units (SUs), to a…

Signal Processing · Electrical Eng. & Systems 2026-01-27 Ahmad Halimi Razlighi , Carsten Bockelmann , Armin Dekorsy

With the significant advances in generative AI (GAI) and the proliferation of mobile devices, providing high-quality AI-generated content (AIGC) services via wireless networks is becoming the future direction. However, the primary…

Machine Learning · Computer Science 2025-03-25 Runze Cheng , Yao Sun , Lan Zhang , Lei Feng , Lei Zhang , Muhammad Ali Imran

The next generation of Internet services, such as Metaverse, rely on mixed reality (MR) technology to provide immersive user experiences. However, the limited computation power of MR headset-mounted devices (HMDs) hinders the deployment of…

Signal Processing · Electrical Eng. & Systems 2023-06-29 Hongyang Du , Jiacheng Wang , Dusit Niyato , Jiawen Kang , Zehui Xiong , Dong In Kim

Score-based generative models (SGMs) have recently shown impressive results for difficult generative tasks such as the unconditional and conditional generation of natural images and audio signals. In this work, we extend these models to the…

Audio and Speech Processing · Electrical Eng. & Systems 2022-07-08 Simon Welker , Julius Richter , Timo Gerkmann

The growing demand for low-latency computing in 6G is driving the use of UAV-based low-altitude mobile edge computing (MEC) systems. However, limited spectrum often leads to severe uplink interference among ground terminals (GTs). In this…

Networking and Internet Architecture · Computer Science 2025-07-18 Xudong Wang , Hongyang Du , Lei Feng , Kaibin Huang

This paper studies a wireless networked control system with multiple base stations (BSs) cooperatively coordinating the wireless control of a number of subsystems each consisting of a plant, a sensor, and an actuator. In this system, each…

Information Theory · Computer Science 2025-01-22 Zhilin Liu , Yiyang Li , Huijun Xing , Ye Zhang , Jie Xu , Shuguang Cui

For time-frequency (TF) domain speech enhancement (SE) methods, the overlap-and-add operation in the inverse TF transformation inevitably leads to an algorithmic delay equal to the window size. However, typical causal SE systems fail to…

Audio and Speech Processing · Electrical Eng. & Systems 2025-01-22 Yuewei Zhang , Huanbin Zou , Jie Zhu

Airborne mobile Integrated Sensing and Communication (ISAC) base stations have garnered significant attention recently, with ISAC technology being a crucial application for 6G networks. Since ISAC can sense potential mobile communication…

Performance · Computer Science 2025-08-05 Shengcai Zhou , Luping Xiang , Kun Yang , Kai Kit Wong , Dapeng Oliver Wu , Chan-Byoung Chae

Future 6G networks are envisioned to enhance the user experience in a multitude of different ways. The unification of existing terrestrial networks with non-terrestrial network (NTN) components will provide users with ubiquitous…

Signal Processing · Electrical Eng. & Systems 2025-06-06 Bruno De Filippo , Carla Amatetti , Riccardo Campana , Alessandro Guidotti , Alessandro Vanelli-Coralli